Maximizing 60' improves ET. OD lets you have both gears for dual purpose. Low first gear helps some. Launch rpm, pump shot and nozzle size also have a role and takes a lot of testing most people don't do. I personally don't care for bracket racing but do compete when the weather is ideal. Faster cars running the fender and slamming the brakes is not real racing. When I run a faster car I dial tight and won't lift. If your car can 60' and get out in front you have a good chance to get the other lane to breakout.